6.0 build questions
#22
Staging Lane
My swap was about the same went from a 4.8 to 6.0 07 classic my cam was 228/232 might be a little much for daily idk that depends on the person i have a 3200 stall behind it as far as the swap everything was pretty straight forward i wanna say we changed flywheels or we just had a little trouble when we were installing the converter i acnt remember. Anyways if i can be of assistance let me knw
#25
Staging Lane
Thread Starter
I'll be using a auto tec piston most likely. Flat top with valve relief. I'm letting the guy at the machine shop order for me however, and he can order from a couple different places. He does the machine work for all the hot rod shops in the Longview area. As far as compression goes, I really don't know. Not too familiar with compression. I'd like to not have to run 91 all the time, I know that much lol!
#28
If you want to stick with low octane fuel then don't go beyond an LQ9's 10:1 more or less. As mentioned above you need to see what cc those pistons are and then how far out the bore they end up sticking out..... plus head gasket and of course chamber volume to figure out your actual compression ratio. You are probably best off sticking with the 317 head and a mild cam... Mid range torque is a lot more fun than hp at 6500 in a heavy truck anyhow. If you have the XR265 already just run it.. its small but a decent improvement over the stock LQ4/LQ9 stick. No point reinventing the wheel here lol.
#29
Should be able to get away with 87.. mild tune in an LQ9 and it plugs along with it with no real knock retard.